The Duchess was joined at the gala by Princess Beatrice, who made her red carpet debut with boyfriend Edoardo Mapelli Mozzi, David and Victoria Beckham and Kate Moss – just to name a few.
Kate mingled with guests and even revealed a sweet tidbit about Prince George to National Portrait Gallery youth member, Savanna Achampong.
“She said she was thinking of bringing George here,” she revealed.
“She said that maybe she could speak to us so we could recommend what paintings they should come and see.
“She was really genuine and down to earth, really nice.”